grid.xaxis               package:grid               R Documentation

_D_r_a_w _a_n _X-_A_x_i_s _o_n _a _G_r_i_d _V_i_e_w_p_o_r_t

_D_e_s_c_r_i_p_t_i_o_n:

     This function draws an x-axis.

_U_s_a_g_e:

     grid.xaxis(at = NULL, label = TRUE, main = TRUE, gp = gpar(),
                draw = TRUE, vp = NULL)

_A_r_g_u_m_e_n_t_s:

      at: A numeric vector of x-value locations for the tick marks.

   label: A logical value indicating whether to draw the labels on the
          tick marks.

    main: A logical value indicating whether to draw the axis at the
          bottom ('TRUE') or at the top ('FALSE') of the viewport.

      gp: An object of class 'gpar', typically the output from a call
          to the function 'gpar'.  This is basically a list of
          graphical parameter settings.

    draw: A logical value indicating whether graphics output should be
          produced.

      vp: A Grid viewport obect (or 'NULL').

_D_e_t_a_i_l_s:

     The '"grob"' object contains an object of class '"xaxis"'.

_V_a_l_u_e:

     An object of class '"grob"'.

_A_u_t_h_o_r(_s):

     Paul Murrell

_S_e_e _A_l_s_o:

     Grid, 'viewport', 'grid.yaxis'

